         [:body
             [:div {:class "container"}
                 (render-navigation-bar-section url-prefix title)
+                (render-breadcrumb url-prefix nil nil nil nil nil nil)
                 [:div {:class "container-fluid"}
                 [:h2 "Product list"]
                 [:table {:style "border-collapse: separate; border-spacing: 10px;"}

        [:body
            [:div {:class "container"}
                (render-navigation-bar-section url-prefix title)
                [:div {:class "container-fluid"}
                [:p 42]
                ]
                (render-html-footer)
            ] ; </div class="container">

            [:div {:class "container"}
                (render-navigation-bar-section url-prefix title)
                [:div {:class "container-fluid"}
                [:h2 (str "Chapters &#x25b6; for product " product-name " and chapter " chapter-name)]
                [:table {:style "border-collapse: separate; border-spacing: 10px;"}
                    (for [group group-list]
                        [:tr
